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Boss 644UA Owner's Manual

Mp3-compatible in-dash am/fm cd receiver with front panel usb port, sd memory card port and aux input
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Summary of Contents for Boss 644UA

  • Page 2 644UA OWNER’S MANUAL Mobile Audio System PLL Synthesizer Stereo Radio CD/MP3/WMA Player Automatic Memory Storing Full Detachable Panel Preset Equalization Electronic Shockproof (ESP) Function Memory Card Interface USB Interface Auxiliary Input Function Remote Control...

  • Page 3: Table Of Contents

    CONTENTS Installation ........... 3 Repeating tracks ....... 11 Playing tracks in random ....11 Take out screw before installation ..3 Ejecting a disc ........11 DIN Front-Mount (Method A)....3 Special function for MP3/WMA disc...11 Installing the unit ....... 3 USB play operation .......12 Removing the unit ......

  • Page 4: Installation

    INSTALLATION Notes: TAKE OUT SCREW BEFORE INSTALLATION Choose the mounting location where Before install the unit, please remove the the unit will not interfere with the normal two screws. driving function of the driver. Take out screw Before finally installing the unit, connect before installation.

  • Page 5: Removing The Unit

    INSTALLATION to fit your vehicle’s mounting area. Then use the supplied hardware (Tapping Screw and Plain Washer) to attach the other end of metal strap to a solid metal part of the vehicle under the dashboard. This strap also helps ensure proper electrical grounding of the unit.

  • Page 6: Din Rear-Mount (Method B)

    INSTALLATION Note: The outer trim ring, sleeve and the 5. Insert both of the supplied keys into the metal strap are not used for method B slots at the middle left and right sides of installation. the unit, then pull the unit out of the dashboard.

  • Page 7: Using The Detachable Front Panel

    Precautions when handing USING THE DETACHABLE FRONT PANEL Do not drop the front panel. REMOVING THE FRONT PANEL Precautions when handling 1. Press the release button on the front 1. Do not drop the front panel. panel and pull off the front panel. 2.

  • Page 8: Wiring Connection

    WIRING CONNECTION FOR 60X4W SYSTEM...

  • Page 9: Operation

    OPERATION LOCATION OF KEYS release button 14. BND/LOU/ENT button (tune/seek/track up) (tune/seek/track down) 3. Volume knob (when rotated) 16. 4 SHF button SEL button (when pressed) 17. Memory card interface 4. Disc slot 18. 5 DIR- button 5. 1 PAU button 19.

  • Page 10: Basic Operation

    OPERATION BASIC OPERATION SET THE CLOCK Press the DISP button (22) until the clock SWITCHING ON/OFF THE UNIT is shown on the display. Then hold the Press PWR/MUT button (23) to switch on button until the clock flashes. Then press the unit.

  • Page 11: Radio Operation

    OPERATION The reset button is to be activated for the - Program scanning following reasons: Press AS/PS button (10) shortly to scan Initial installation of the unit when all preset station. When the field strength wiring is completed. level is more than the threshold level of All the function buttons do not operate.

  • Page 12: Previewing Tracks

    OPERATION “Searching track directly” => “Searching PREVIEWING TRACKS Press SCN button (6) to play first several Directory or File Name”=> “Navigation” seconds of each track on the current disc. from root => “Navigation” from current Press again to stop intro and listen to track. directory.

  • Page 13: Usb Play Operation

    OPERATION 3) DISPLAY INFORMATION The operation is the same with the MP3 Press DISP button (22) to show the operation described above. If in other following information, such as the clock, mode, you can also press MOD button (11) ID3 TAG (if available: song title, directory to select memory card play mode.
  • Page 14 OPERATION b. Use CD-Rs with speed 1x to 8x and write with speed 1x to 2x. c. Do not play a CD-RW which has been written for more than 5 times. C. Notes on MP3 files (MP3 Version Only): 1. The disc must be in the ISO9660 level 1 or level 2 format, or Joliet or Romeo in the expansion format.

  • Page 15: Remote Control

    REMOTE CONTROL 1. VOL+: Volume Up Button (Character Select (A, B~8,9,0, _,-,+) For MP3/WMA Operation) MUTE: Power ON/OFF/MUTE Button 3. SELECT: Sound Mode Select Button (Character Shift Right For MP3/WMA Operation) 4. TUNE/SKIP : Tune/Seek Down Button 5. DISP: Display Button 6.

  • Page 16: Specification

    SPECIFICATION GENERAL Power Supply Requirements : DC 12 Volts, Negative Ground Chassis Dimensions : 178 (W) x 160 (D) x 50 (H) Tone Controls Bass (at 100 Hz) : ±10 dB Treble (at 10 kHz) : ±10 dB Maximum Output Power : 60x4 watts Current Drain : 5 Ampere (max.)

  • Page 17: Trouble Shooting

    TROUBLE SHOOTING Before going through the checklist, check wiring connection. If any of the problems persist after checklist has been made, consult your nearest service dealer. Symptom Cause Solution The car ignition switch is If the power supply is No power. not on.

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